The impact of stimulus valence and emotion regulation on sustained brain activation: task-rest switching in emotion.

ABSTRACT: Task-rest interactions, defined as the modulation of brain activation during fixation periods depending on the preceding stimulation and experimental manipulation, have been described repeatedly for different cognitively demanding tasks in various regions across the brain. However, task-rest interactions in emotive paradigms have received considerably less attention. In this study, we therefore investigated task-rest interactions evoked by the induction and instructed regulation of negative emotion. Whole-brain, functional MRI data were acquired from 55 healthy participants. Two-level general linear model statistics were computed to test for differences between conditions, separately for stimulation and for fixation periods, as well as for interactions between stimulation and fixation (tas

SUBMITTER: Lamke JP 

PROVIDER: S-EPMC3969367 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature